Before you order: GM part numbers change by option code and year. Confirm against your VIN with a GM dealer. Callout numbers on this page are our own and do not match GM's diagram numbers. Quantities are per vehicle (both sides).
Engine: this page covers the V6 only: 3.0L (LF1 2010, LFW 2011-2012) and 3.6L (LFX 2013-2017). For the 2.4L, see Cylinder Head 2.4L. Most V6 head parts are bank-specific (driver / passenger side). One head is drawn; the other bank is a mirror image. Cam actuators are on the Timing Chain V6 page. The drawing is simplified and not to scale.
Engine: this page covers the V6 only: 3.0L (LF1 2010, LFW 2011-2012) and 3.6L (LFX 2013-2017). For the 2.4L, see Cylinder Head 2.4L. Most V6 head parts are bank-specific (driver / passenger side). One head is drawn; the other bank is a mirror image. Cam actuators are on the Timing Chain V6 page. The drawing is simplified and not to scale.
| # | Part | GM OEM # | Fitment & notes | Buy |
|---|---|---|---|---|
| 1 | Head, cylinder (with valves) | 12641100 3.0L 2010 driver side 12686764 3.0L 2012 driver side (current) 12679101 3.0L 2012 driver side (superseded) 12635548 3.0L 2010-2012 passenger side 12692322 3.6L 2013-2017 driver side 12686767 3.6L 2013-2017 passenger side | V6. Heads are bank-specific. GM: the 2010 3.0L heads must be ordered with matching intake and exhaust cam actuators (see the Timing Chain V6 page); GM also refers to a service bulletin for 12635548. 12679101 is replaced by 12686764. GM also lists a bare machined 3.6L passenger head, 12674218 (needs the oil check valves, 29). | Check price on Amazon |
| 2 | Gasket, cylinder head | 12634481 3.0L driver side 12634480 3.0L passenger side 12648843 3.6L driver side 12634479 3.6L passenger side | V6. GM: new head bolts are required whenever a head is removed. | Check price on Amazon |
| 3 | Gasket kit, cylinder head (not illustrated) | 12691202 3.0L 2010-2012 12695505 3.6L 2014-2016 12691203 3.6L 2017 | V6. Includes head gaskets and cam cover seals; head bolts are not included. | Check price on Amazon |
| 4 | Bolt, cylinder head (M11x2x152) | 19352499 | V6 3.0L and 3.6L. Qty 16. GM sells them in packs of 4. | Check price on Amazon |
| 5 | Bolt, cylinder head (outboard, M8x1.25x90) | 11518861 3.6L 11588734 3.0L 2012 | V6. Qty 3 per GM. Single use. | Check price on Amazon |
| 6 | Camshaft, intake | 12632272 driver side: 3.6L, some 2012 3.0L 12632275 3.6L passenger side 12638402 3.0L 2012 driver side 12638406 3.0L 2012 passenger side 12625986 3.0L 2010 driver side 19431713 3.0L 2010 passenger side | V6. Includes the sprocket oil seal ring. 12638402 and 12638406 replace 12638172 and 12638173. GM applies 12632272 to the 3.6L and to 3.0L engines with options MH2 / MH4; check your VIN. | Check price on Amazon |
| 7 | Camshaft, exhaust | 12632270 driver side, 2012-2017 12632274 passenger side, 2011-2017 19433783 3.0L 2010 driver side 19431714 3.0L 2010 passenger side | V6. 19431714 replaces remanufactured cam 19420032. | Check price on Amazon |
| 8 | Valve, intake | 12620501 3.0L 12610931 3.6L | V6. Qty 12. GM also lists a 0.075 mm oversize 3.0L intake valve, 12584761. | Check price on Amazon |
| 9 | Valve, exhaust | 12621548 | V6 3.0L and 3.6L. Qty 12. | Check price on Amazon |
| 10 | Seal kit, valve stem oil (12 seals) | 19207664 | V6. Qty 2 kits. | Check price on Amazon |
| 11 | Spring, valve | 12686721 | V6. Qty 24. | Check price on Amazon |
| 12 | Retainer, valve spring | 12575196 | V6. Qty 24. | Check price on Amazon |
| 13 | Key, valve stem (keeper) | 12575197 | V6. Qty 48. | Check price on Amazon |
| 14 | Arm, valve rocker (roller finger follower) | 24100294 | V6. Qty 24. | Check price on Amazon |
| 15 | Adjuster, hydraulic valve lash | 12686787 | V6. Qty 24. Same number as the 2.4L. | Check price on Amazon |
| 16 | Cover, camshaft (valve cover) | 12647772 driver side, plastic 12705522 3.6L driver side 12641260 passenger side, plastic 12688702 3.6L passenger side, aluminum | V6. Covers come with seals, bolts and spark plug tube seals. GM notes the plastic covers as currently serviced by newer numbers (12666777 / 12664391); confirm with your VIN. | Check price on Amazon |
| 17 | Seal, camshaft cover | 12607401 driver side, plastic cover 12641261 passenger side, plastic cover 12664357 driver side, aluminum cover 12688703 passenger side, aluminum cover | V6. Part of the cover (16). | Check price on Amazon |
| 18 | Seal, spark plug tube (not illustrated) | 12607600 | V6. Qty 6. Part of the cover (16). | Check price on Amazon |
| 19 | Bolt, camshaft cover | 11570020 | V6. Includes its grommet. Part of the cover (16). | Check price on Amazon |
| 20 | Coil, ignition | 12632479 | V6. Qty 6. Includes the seal. | Check price on Amazon |
| 21 | Spark plug (iridium, pre-gapped) | 12681660 | V6. Qty 6. GM: pre-gapped, do not change the gap. | Check price on Amazon |
| 22 | Pump, fuel (high pressure, direct injection) | 12691016 | V6. Mounted on the cylinder head. | Check price on Amazon |
| 23 | Gasket, fuel pump bracket | 12633917 2010-2013 12677330 2014-2017 | V6. Part of the pump (22). | Check price on Amazon |
| 24 | Follower, fuel pump (valve lifter) | 12590679 | V6 and 2.4L. | Check price on Amazon |
| 25 | Sensor, engine coolant temperature | 12611420 | V6 3.0L and 3.6L. | Check price on Amazon |
| 26 | Tube, oil filler (with cap and seals) | 12650614 | V6. | Check price on Amazon |
| 27 | Cap, oil filler | 12642516 2011-2017 12631205 2010 | V6. | Check price on Amazon |
| 28 | Fitting, PCV | 12681693 driver side 12583384 passenger side, 2010-2013 | V6. Part of the cover (16). | Check price on Amazon |
| 29 | Valve, engine oil manifold check | 12580965 | V6. Qty 4. | Check price on Amazon |
The illustration is an original drawing made for this site. It is not to scale and the shapes are representative.